$β^+$ radioactive nuclei created during proton therapy
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arXiv
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| Main Authors: | , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866918296406720512 |
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| author | Skwira-Chalot, Izabela Sekowski, Przemysław Taranienko, Agata Spyra, Adam Matulewicz, Tomasz Swakoń, Jan Matulewicz, Joanna |
| author_facet | Skwira-Chalot, Izabela Sekowski, Przemysław Taranienko, Agata Spyra, Adam Matulewicz, Tomasz Swakoń, Jan Matulewicz, Joanna |
| contents | During proton therapy, the beam flux decreases due to inelastic interactions with nuclei. At the highest energies used in proton therapy around 25\% protons initiate nuclear reactions. This report presents the cross section measurements of proton-induced production of three $β^+$ emitters -- $^{11}$C, $^{13}$N, $^{15}$O -- with half-lives between 2 and 20 minutes, using solid C, BN and SiO$_2$ targets. Stacks of up to 15 targets were irradiated simultaneously with proton beams of kinetic energy below 58 MeV at the AIC-144 cyclotron of the Institute of Nuclear Physics, Polish Academy of Sciences. The measured cross sections follow the excitation function obtained in the previous experiments, with uncertainty of a few percent. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2511_09468 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | $β^+$ radioactive nuclei created during proton therapy Skwira-Chalot, Izabela Sekowski, Przemysław Taranienko, Agata Spyra, Adam Matulewicz, Tomasz Swakoń, Jan Matulewicz, Joanna Nuclear Experiment Medical Physics During proton therapy, the beam flux decreases due to inelastic interactions with nuclei. At the highest energies used in proton therapy around 25\% protons initiate nuclear reactions. This report presents the cross section measurements of proton-induced production of three $β^+$ emitters -- $^{11}$C, $^{13}$N, $^{15}$O -- with half-lives between 2 and 20 minutes, using solid C, BN and SiO$_2$ targets. Stacks of up to 15 targets were irradiated simultaneously with proton beams of kinetic energy below 58 MeV at the AIC-144 cyclotron of the Institute of Nuclear Physics, Polish Academy of Sciences. The measured cross sections follow the excitation function obtained in the previous experiments, with uncertainty of a few percent. |
| title | $β^+$ radioactive nuclei created during proton therapy |
| topic | Nuclear Experiment Medical Physics |
| url | https://arxiv.org/abs/2511.09468 |